The Younger Dryas Boundary Layer
Gösta Lindwall, April 4, 2020
The Younger Dryas Boundary Layer (YDBL) has been researched and studied for a long time. It was previously known as the ”Black Mat Layer”. The visible composition is a remnant of a continental wide layer of ash. This layer appears at a depth level dated to 12,800 years before present day. The layer is found in North- and South America, Europe, Asia and Australia.
In 2007, Richard Firestone, Allen West, and others, published an article about the YDBL, where they connected the layer to a cosmic impact event. At many locations, samples had background peaks in magnetic spherules, magnetic grains, micro diamants, glass-like carbon, charcoal, and iridium, all proxies indicative of a comet or asteroid impact.
The Comet Research Group has drawn some ambitious conclusions connecting an asteroid swarm to this event.
Scientists find extinct animals of the Pleistocene Megafauna, only in layers below the black mat layer, together with human remains of the Clovis culture. Above the boundary layer, only skeletal remains of species from after the cosmic event are found.
Other cataclysmic climate events, possibly connected to the impact, at the end of the Ice age is the YD cooling, a period of 1100 years of temperature fall between 12,800 and 11,600 years ago. At the assumed cosmic impact event, rapid ice melt raised the sea water level by 400 feet. Besides enormous fires, large earthquakes, tsunamis and floods, would have ravished the landscape for many lifetimes.
People that research and hypothesizes lost ancient civilizations, view the YDBL as a strong indication that a cataclysmic event caused the destruction of these civilizations.
This article has also been published on Facebook in the group Forbidden Archaeology and other Mysteries.